Android编译问题汇总

• Execution failed for task ':app:preDebugAndroidTestBuild

Error:Execution failed for task ‘:app:preDebugAndroidTestBuild’.
Conflict with dependency ‘com.android.support:support-annotations’ in project ‘:app’. Resolved versions for app (22.1.0) and test app (25.4.0) differ. See https://d.android.com/r/tools/test-apk-dependency-conflicts.html for details.

所依赖的dependency与当前版本不一致导致的。

解决：build->Rebuid-project

• Error:UNEXPECTED TOP-LEVEL ERROR:
  调大分配内存解决
  解决：

dexOptions {
    javaMaxHeapSize "4g"
}

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